Abdu F Azad

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Murine Typhus: Vector Biology & Transmission

Abdu F Azad

1 September 1982 - 30 November 2007
NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES

75 Resulting Publications

• 1.

  2012

  Simran J Kaur; M Sayeedur Rahman; Nicole C Ammerman; Magda Beier-Sexton; Shane M Ceraul; Joseph J Gillespie; Abdu F Azad

  TolC-dependent secretion of an ankyrin repeat-containing protein of Rickettsia typhi.

  Journal of bacteriology 2012;194(18):4920-32.

• 2.

  2012

  Joseph J Gillespie; Vinita Joardar; Kelly P Williams; Timothy Driscoll; Jessica B Hostetler; Eric Nordberg; Maulik Shukla; Brian Walenz; Catherine A Hill; Vishvanath M Nene; et al.

  A Rickettsia genome overrun by mobile genetic elements provides insight into the acquisition of genes characteristic of an obligate intracellular lifestyle.

  Journal of bacteriology 2012;194(2):376-94.

• 3.

  2012

  Khandra T Sears; Shane M Ceraul; Joseph J Gillespie; Edwin D Allen; Vsevolod L Popov; Nicole C Ammerman; M Sayeedur Rahman; Abdu F Azad

  Surface proteome analysis and characterization of surface cell antigen (Sca) or autotransporter family of Rickettsia typhi.

  PLoS pathogens 2012;8(8):e1002856.

• 4.

  2012

  Lowell S Kappmeyer; Mathangi Thiagarajan; David R Herndon; Joshua D Ramsay; Elisabet Caler; Appolinaire Djikeng; Joseph J Gillespie; Audrey Ot Lau; Eric H Roalson; Joana C Silva; et al.

  Comparative genomic analysis and phylogenetic position of Theileria equi.

  BMC genomics 2012;13():603.

• 5.

  2011

  Shane M Ceraul; Ashley Chung; Khandra T Sears; Vsevolod L Popov; Magda Beier-Sexton; M Sayeedur Rahman; Abdu F Azad

  A Kunitz protease inhibitor from Dermacentor variabilis, a vector for spotted fever group rickettsiae, limits Rickettsia montanensis invasion.

  Infection and immunity 2011;79(1):321-9.

• 6.

  2010

  M Sayeedur Rahman; Nicole C Ammerman; Khandra T Sears; Shane M Ceraul; Abdu F Azad

  Functional characterization of a phospholipase A(2) homolog from Rickettsia typhi.

  Journal of bacteriology 2010;192(13):3294-303.

• 7.

  2010

  Joseph J Gillespie; Kelly A Brayton; Kelly P Williams; Marco A Quevedo Diaz; Wendy C Brown; Abdu F Azad; Bruno W Sobral

  Phylogenomics reveals a diverse Rickettsiales type IV secretion system.

  Infection and immunity 2010;78(5):1809-23.

• 8.

  2010

  S M Dreher-Lesnick; S M Ceraul; S C Lesnick; J J Gillespie; J M Anderson; R C Jochim; J G Valenzuela; A F Azad

  Analysis of Rickettsia typhi-infected and uninfected cat flea (Ctenocephalides felis) midgut cDNA libraries: deciphering molecular pathways involved in host response to R. typhi infection.

  Insect molecular biology 2010;19(2):229-41.

• 9.

  2010

  Eric L Sutten; Junzo Norimine; Paul A Beare; Robert A Heinzen; Job E Lopez; Kaitlyn Morse; Kelly A Brayton; Joseph J Gillespie; Wendy C Brown

  Anaplasma marginale type IV secretion system proteins VirB2, VirB7, VirB11, and VirD4 are immunogenic components of a protective bacterial membrane vaccine.

  Infection and immunity 2010;78(3):1314-25.

• 10.

  2009

  Nicole C Ammerman; Joseph J Gillespie; Andrew F Neuwald; Bruno W Sobral; Abdu F Azad

  A typhus group-specific protease defies reductive evolution in rickettsiae.

  Journal of bacteriology 2009;191(24):7609-13.

• 11.

  2009

  Joseph J Gillespie; Nicole C Ammerman; Magda Beier-Sexton; Bruno S Sobral; Abdu F Azad

  Louse- and flea-borne rickettsioses: biological and genomic analyses.

  Veterinary research 2009;40(2):12.

• 12.

  2009

  Joseph J Gillespie; Nicole C Ammerman; Sheila M Dreher-Lesnick; M Sayeedur Rahman; Micah J Worley; Joao C Setubal; Bruno S Sobral; Abdu F Azad

  An anomalous type IV secretion system in Rickettsia is evolutionarily conserved.

  PloS one 2009;4(3):e4833.

• 13.

  2008

  Shane M Ceraul; Sheila M Dreher-Lesnick; Albert Mulenga; M Sayeedur Rahman; Abdu F Azad

  Functional characterization and novel rickettsiostatic effects of a Kunitz-type serine protease inhibitor from the tick Dermacentor variabilis.

  Infection and immunity 2008;76(11):5429-35.

• 14.

  2008

  Nicole C Ammerman; M Sayeedur Rahman; Abdu F Azad

  Characterization of Sec-translocon-dependent extracytoplasmic proteins of Rickettsia typhi.

  Journal of bacteriology 2008;190(18):6234-42.

• 15.

  2008

  Sheila M Dreher-Lesnick; Shane M Ceraul; M Sayeedur Rahman; Abdu F Azad

  Genome-wide screen for temperature-regulated genes of the obligate intracellular bacterium, Rickettsia typhi.

  BMC microbiology 2008;8():61.

• 16.

  2008

  Joseph J Gillespie; Kelly Williams; Maulik Shukla; Eric E Snyder; Eric K Nordberg; Shane M Ceraul; Chitti Dharmanolla; Daphne Rainey; Jeetendra Soneja; Joshua M Shallom; et al.

  Rickettsia phylogenomics: unwinding the intricacies of obligate intracellular life.

  PloS one 2008;3(4):e2018.

• 17.

  2007

  Joyce M Sakamoto; Abdu F Azad

  Propagation of arthropod-borne Rickettsia spp. in two mosquito cell lines.

  Applied and environmental microbiology 2007;73(20):6637-43.

• 18.

  2007

  Abdu F Azad

  Pathogenic rickettsiae as bioterrorism agents.

  Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2007;45 Suppl 1():S52-5.

• 19.

  2007

  Shane M Ceraul; Sheila M Dreher-Lesnick; Joseph J Gillespie; M Sayeedur Rahman; Abdu F Azad

  New tick defensin isoform and antimicrobial gene expression in response to Rickettsia montanensis challenge.

  Infection and immunity 2007;75(4):1973-83.

• 20.

  2007

  Katherine M Henry; Ju Jiang; Patrick J Rozmajzl; Abdu F Azad; Kevin R Macaluso; Allen L Richards

  Development of quantitative real-time PCR assays to detect Rickettsia typhi and Rickettsia felis, the causative agents of murine typhus and flea-borne spotted fever.

  Molecular and cellular probes 2007;21(1):17-23.

• 21.

  2007

  M Sayeedur Rahman; Shane M Ceraul; Sheila M Dreher-Lesnick; Magda S Beier; Abdu F Azad

  The lspA gene, encoding the type II signal peptidase of Rickettsia typhi: transcriptional and functional analysis.

  Journal of bacteriology 2007;189(2):336-41.

• 22.

  2007

  Joseph J Gillespie; Magda S Beier; M Sayeedur Rahman; Nicole C Ammerman; Joshua M Shallom; Anjan Purkayastha; Bruno S Sobral; Abdu F Azad

  Plasmids and rickettsial evolution: insight from Rickettsia felis.

  PloS one 2007;2(3):e266.

• 23.

  2005

  Jason A Simser; M Sayeedur Rahman; Sheila M Dreher-Lesnick; Abdu F Azad

  A novel and naturally occurring transposon, ISRpe1 in the Rickettsia peacockii genome disrupting the rickA gene involved in actin-based motility.

  Molecular microbiology 2005;58(1):71-9.

• 24.

  2004

  Jason A Simser; Kevin R Macaluso; Albert Mulenga; Abdu F Azad

  Immune-responsive lysozymes from hemocytes of the American dog tick, Dermacentor variabilis and an embryonic cell line of the Rocky Mountain wood tick, D. andersoni.

  Insect biochemistry and molecular biology 2004;34(12):1235-46.

• 25.

  2004

  A Mulenga; J A Simser; K R Macaluso; A F Azad

  Stress and transcriptional regulation of tick ferritin HC.

  Insect molecular biology 2004;13(4):423-33.

• 26.

  2004

  J A Simser; A Mulenga; K R Macaluso; A F Azad

  An immune responsive factor D-like serine proteinase homologue identified from the American dog tick, Dermacentor variabilis.

  Insect molecular biology 2004;13(1):25-35.

• 27.

  2003

  Albert Mulenga; Kevin R Macaluso; Jason A Simser; Abdu F Azad

  The American dog tick, Dermacentor variabilis, encodes a functional histamine release factor homolog.

  Insect biochemistry and molecular biology 2003;33(9):911-9.

• 28.

  2003

  Abdu F Azad; Suzana Radulovic

  Pathogenic rickettsiae as bioterrorism agents.

  Annals of the New York Academy of Sciences 2003;990():734-8.

• 29.

  2003

  A Mulenga; K R Macaluso; J A Simser; A F Azad

  Dynamics of Rickettsia-tick interactions: identification and characterization of differentially expressed mRNAs in uninfected and infected Dermacentor variabilis.

  Insect molecular biology 2003;12(2):185-93.

• 30.

  2003

  Jariyanart Gaywee; John B Sacci; Suzana Radulovic; Magda S Beier; Abdu F Azad

  Subcellular localization of rickettsial invasion protein, InvA.

  The American journal of tropical medicine and hygiene 2003;68(1):92-6.

• 31.

  2002

  Jariyanart Gaywee; Suzana Radulovic; James A Higgins; Abdu F Azad

  Transcriptional analysis of Rickettsia prowazekii invasion gene homolog (invA) during host cell infection.

  Infection and immunity 2002;70(11):6346-54.

• 32.

  2002

  Suzana Radulovic; M Sayeedur Rahman; Magda S Beier; Abdu F Azad

  Molecular and functional analysis of the Rickettsia typhi groESL operon.

  Gene 2002;298(1):41-8.

• 33.

  2002

  Ardys Boostrom; Magda S Beier; Jacqueline A Macaluso; Kevin R Macaluso; Daniel Sprenger; Jack Hayes; Suzana Radulovic; Abdu F Azad

  Geographic association of Rickettsia felis-infected opossums with human murine typhus, Texas.

  Emerging infectious diseases 2002;8(6):549-54.

• 34.

  2002

  S Radulovic; P W Price; M S Beier; J Gaywee; J A Macaluso; A Azad

  Rickettsia-macrophage interactions: host cell responses to Rickettsia akari and Rickettsia typhi.

  Infection and immunity 2002;70(5):2576-82.

• 35.

  2002

  Jariyanart Gaywee; WenLian Xu; Suzana Radulovic; Maurice J Bessman; Abdu F Azad

  The Rickettsia prowazekii invasion gene homolog (invA) encodes a Nudix hydrolase active on adenosine (5')-pentaphospho-(5')-adenosine.

  Molecular & cellular proteomics : MCP 2002;1(3):179-85.

• 36.

  2001

  A A Lal; P S Patterson; J B Sacci; J A Vaughan; C Paul; W E Collins; R A Wirtz; A F Azad

  Anti-mosquito midgut antibodies block development of Plasmodium falciparum and Plasmodium vivax in multiple species of Anopheles mosquitoes and reduce vector fecundity and survivorship.

  Proceedings of the National Academy of Sciences of the United States of America 2001;98(9):5228-33.

• 37.

  2001

  A O Lau; J B Sacci; A F Azad

  Detection of Plasmodium yoelii stage mRNA in BALB/c mice.

  The Journal of parasitology 2001;87(1):19-23.

• 38.

  2000

  D O Wood; A F Azad

  Genetic manipulation of rickettsiae: a preview.

  Infection and immunity 2000;68(11):6091-3.

• 39.

  2000

  A O Lau; J B Sacci; A F Azad

  Retrieving parasite specific liver stage gene products in Plasmodium yoelii infected livers using differential display.

  Molecular and biochemical parasitology 2000;111(1):143-51.

• 40.

  2000

  K C McKenna; M Tsuji; M Sarzotti; J B Sacci; A A Witney; A F Azad

  gammadelta T cells are a component of early immunity against preerythrocytic malaria parasites.

  Infection and immunity 2000;68(4):2224-30.

• 41.

  1998

  J M Troyer; S Radulovic; S G Andersson; A F Azad

  Detection of point mutations in rpoB gene of rifampin-resistant Rickettsia typhi.

  Antimicrobial agents and chemotherapy 1998;42(7):1845-6.

• 42.

  1998

  B H Noden; S Radulovic; J A Higgins; A F Azad

  Molecular identification of Rickettsia typhi and R. felis in co-infected Ctenocephalides felis (Siphonaptera: Pulicidae).

  Journal of medical entomology 1998;35(4):410-4.

• 43.

  1998

  A F Azad; C B Beard

  Rickettsial pathogens and their arthropod vectors.

  Emerging infectious diseases 1998;4(2):179-86.

• 44.

  1997

  A F Azad; S Radulovic; J A Higgins; B H Noden; J M Troyer

  Flea-borne rickettsioses: ecologic considerations.

  Emerging infectious diseases 1997;3(3):319-27.

• 45.

  1996

  D C Jaworski; J A Higgins; S Radulovic; J A Vaughan; A F Azad

  Presence of calreticulin in vector fleas (Siphonaptera).

  Journal of medical entomology 1996;33(3):482-9.

• 46.

  1996

  J A Higgins; S Radulovic; D C Jaworski; A F Azad

  Acquisition of the cat scratch disease agent Bartonella henselae by cat fleas (Siphonaptera:Pulicidae).

  Journal of medical entomology 1996;33(3):490-5.

• 47.

  1996

  J A Higgins; S Radulovic; M E Schriefer; A F Azad

  Rickettsia felis: a new species of pathogenic rickettsia isolated from cat fleas.

  Journal of clinical microbiology 1996;34(3):671-4.

• 48.

  1995

  S Radulovic; J A Higgins; D C Jaworski; G A Dasch; A F Azad

  Isolation, cultivation, and partial characterization of the ELB agent associated with cat fleas.

  Infection and immunity 1995;63(12):4826-9.

• 49.

  1995

  S Radulovic; J A Higgins; D C Jaworski; A F Azad

  In vitro and in vivo antibiotic susceptibilities of ELB rickettsiae.

  Antimicrobial agents and chemotherapy 1995;39(11):2564-6.

• 50.

  1995

  J A Higgins; A F Azad

  Use of polymerase chain reaction to detect bacteria in arthropods: a review.

  Journal of medical entomology 1995;32(3):213-22.

• 51.

  1994

  M E Schriefer; J B Sacci; J P Taylor; J A Higgins; A F Azad

  Murine typhus: updated roles of multiple urban components and a second typhuslike rickettsia.

  Journal of medical entomology 1994;31(5):681-5.

• 52.

  1994

  E Manor; N H Carbonetti; D J Silverman

  Rickettsia rickettsii has proteins with cross-reacting epitopes to eukaryotic phospholipase A2 and phospholipase C.

  Microbial pathogenesis 1994;17(2):99-109.

• 53.

  1994

  M E Schriefer; J B Sacci; J S Dumler; M G Bullen; A F Azad

  Identification of a novel rickettsial infection in a patient diagnosed with murine typhus.

  Journal of clinical microbiology 1994;32(4):949-54.

• 54.

  1993

  J A Vaughan; A F Azad

  Patterns of erythrocyte digestion by bloodsucking insects: constraints on vector competence.

  Journal of medical entomology 1993;30(1):214-6.

• 55.

  1992

  J T Kardatzke; K Neidhardt; D P Dzuban; J L Sanchez; A F Azad

  Cluster of tick-borne infections at Fort Chaffee, Arkansas: Rickettsiae and Borrelia burgdorferi in ixodid ticks.

  Journal of medical entomology 1992;29(4):669-72.

• 56.

  1992

  S G Williams; J B Sacci; M E Schriefer; E M Andersen; K K Fujioka; F J Sorvillo; A R Barr; A F Azad

  Typhus and typhuslike rickettsiae associated with opossums and their fleas in Los Angeles County, California.

  Journal of clinical microbiology 1992;30(7):1758-62.

• 57.

  1992

  J B Sacci; M E Schriefer; J H Resau; R A Wirtz; L J Detolla; R B Markham; A F Azad

  Mouse model for exoerythrocytic stages of Plasmodium falciparum malaria parasite.

  Proceedings of the National Academy of Sciences of the United States of America 1992;89(9):3701-5.

• 58.

  1992

  J V Lange; A G el Dessouky; E Manor; A I Merdan; A F Azad

  Spotted fever rickettsiae in ticks from the northern Sinai Governate, Egypt.

  The American journal of tropical medicine and hygiene 1992;46(5):546-51.

• 59.

  1992

  A F Azad; J B Sacci; W M Nelson; G A Dasch; E T Schmidtmann; M Carl

  Genetic characterization and transovarial transmission of a typhus-like rickettsia found in cat fleas.

  Proceedings of the National Academy of Sciences of the United States of America 1992;89(1):43-6.

• 60.

  1991

  J A Vaughan; D Narum; A F Azad

  Plasmodium berghei ookinete densities in three anopheline species.

  The Journal of parasitology 1991;77(5):758-61.

• 61.

  1990

  J R Adams; E T Schmidtmann; A F Azad

  Infection of colonized cat fleas, Ctenocephalides felis (Bouché), with a rickettsia-like microorganism.

  The American journal of tropical medicine and hygiene 1990;43(4):400-9.

• 62.

  1990

  L Webb; M Carl; D C Malloy; G A Dasch; A F Azad

  Detection of murine typhus infection in fleas by using the polymerase chain reaction.

  Journal of clinical microbiology 1990;28(3):530-4.

• 63.

  1990

  A F Azad

  Epidemiology of murine typhus.

  Annual review of entomology 1990;35():553-69.

• 64.

  1990

  J M Ribeiro; J A Vaughan; A F Azad

  Characterization of the salivary apyrase activity of three rodent flea species.

  Comparative biochemistry and physiology. B, Comparative biochemistry 1990;95(2):215-9.

• 65.

  1990

  A F Azad; L Webb; M Carl; G A Dasch

  Detection of rickettsiae in arthropod vectors by DNA amplification using the polymerase chain reaction.

  Annals of the New York Academy of Sciences 1990;590():557-63.

• 66.

  1990

  J A Vaughan; A F Azad

  Acquisition of murine typhus rickettsiae by fleas.

  Annals of the New York Academy of Sciences 1990;590():70-5.

• 67.

  1990

  J A Vaughan; R A Wirtz; V E do Rosario; A F Azad

  Quantitation of antisporozoite immunoglobulins in the hemolymph of Anopheles stephensi after bloodfeeding.

  The American journal of tropical medicine and hygiene 1990;42(1):10-6.

• 68.

  1989

  A F Azad; R Traub

  Experimental transmission of murine typhus by Xenopsylla cheopis flea bites.

  Medical and veterinary entomology 1989;3(4):429-33.

• 69.

  1989

  J A Vaughan; A E Jerse; A F Azad

  Rat leucocyte response to the bites of rat fleas (Siphonaptera: Pulicidae).

  Journal of medical entomology 1989;26(5):449-53.

• 70.

  1989

  M E Dobson; A F Azad; G A Dasch; L Webb; J G Olson

  Detection of murine typhus infected fleas with an enzyme-linked immunosorbent assay.

  The American journal of tropical medicine and hygiene 1989;40(5):521-8.

• 71.

  1988

  J A Vaughan; A F Azad

  Passage of host immunoglobulin G from blood meal into hemolymph of selected mosquito species (Diptera: Culicidae).

  Journal of medical entomology 1988;25(6):472-4.

• 72.

  1988

  S Arango-Jaramillo; C L Wisseman; A F Azad

  Newborn rats in the murine typhus enzootic infection cycle: studies on transplacental infection and passively acquired maternal antirickettsial antibodies.

  The American journal of tropical medicine and hygiene 1988;39(4):391-7.

• 73.

  1988

  J A Vaughan; V Do Rosario; P Leland; A Adjepong; J Light; G R Woollett; M R Hollingdale; A F Azad

  Plasmodium falciparum: ingested anti-sporozoite antibodies affect sporogony in Anopheles stephensi mosquitoes.

  Experimental parasitology 1988;66(2):171-82.

• 74.

  1987

  A F Azad; M A Emala

  Suppression of Rickettsia typhi transmission in fleas maintained on murine typhus-immune rats.

  The American journal of tropical medicine and hygiene 1987;37(3):629-35.

• 75.

  1987

  A F Azad; R Traub

  Transmission of murine typhus rickettsiae by Leptopsylla segnis (Siphonaptera: Leptopsyllidae).

  Journal of medical entomology 1987;24(6):689-93.

Scientific Context

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